AU5375390A - Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency - Google Patents

Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency

Info

Publication number
AU5375390A
AU5375390A AU53753/90A AU5375390A AU5375390A AU 5375390 A AU5375390 A AU 5375390A AU 53753/90 A AU53753/90 A AU 53753/90A AU 5375390 A AU5375390 A AU 5375390A AU 5375390 A AU5375390 A AU 5375390A
Authority
AU
Australia
Prior art keywords
carrier frequency
direct conversion
conversion receiver
detecting transmitted
dithering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU53753/90A
Other versions
AU624707B2 (en
Inventor
Yoichiro Minami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1100617A external-priority patent/JP2550701B2/en
Priority claimed from JP1989057855U external-priority patent/JPH0810980Y2/en
Priority claimed from JP1277711A external-priority patent/JP2752733B2/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of AU5375390A publication Critical patent/AU5375390A/en
Application granted granted Critical
Publication of AU624707B2 publication Critical patent/AU624707B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/16—Frequency regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
AU53753/90A 1989-04-20 1990-04-20 Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency Ceased AU624707B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1100617A JP2550701B2 (en) 1989-04-20 1989-04-20 FSK receiver
JP1-100617 1989-04-20
JP1989057855U JPH0810980Y2 (en) 1989-05-18 1989-05-18 FSK receiver
JP1-57855 1989-05-18
JP1-277711 1989-10-25
JP1277711A JP2752733B2 (en) 1989-10-25 1989-10-25 Frequency modulated wave receiver

Publications (2)

Publication Number Publication Date
AU5375390A true AU5375390A (en) 1990-10-25
AU624707B2 AU624707B2 (en) 1992-06-18

Family

ID=27296398

Family Applications (1)

Application Number Title Priority Date Filing Date
AU53753/90A Ceased AU624707B2 (en) 1989-04-20 1990-04-20 Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency

Country Status (5)

Country Link
US (1) US5091921A (en)
EP (1) EP0394064B1 (en)
AU (1) AU624707B2 (en)
CA (1) CA2014916C (en)
DE (1) DE69030838T2 (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473373A3 (en) * 1990-08-24 1993-03-03 Rockwell International Corporation Calibration system for direct conversion receiver
JP2861631B2 (en) 1992-05-06 1999-02-24 日本電気株式会社 FSK receiver
KR960007811B1 (en) * 1992-10-19 1996-06-12 닛본덴기 가부시끼가이샤 Receiver
US5459680A (en) * 1993-10-20 1995-10-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method and apparatus for spur-reduced digital sinusoid synthesis
GB9419630D0 (en) * 1994-09-29 1994-11-16 Philips Electronics Uk Ltd Receiver having an adjustable symbol slice demodulator
US5613233A (en) * 1994-09-30 1997-03-18 Rockwell International Corp. Apparatus with distortion cancelling feedback signal
US5533062A (en) * 1994-10-03 1996-07-02 Motorola, Inc. Method and apparatus for carrier tracking and demodulation
US5497121A (en) * 1994-11-30 1996-03-05 Texas Instruments Incorporated Automatically correcting data detection circuit and method for FSK modulated signals
DE19614979C2 (en) 1995-04-20 2001-05-17 Fujitsu Ltd Radio frequency transceiver for data communication
JPH09224059A (en) * 1996-02-15 1997-08-26 General Res Of Electron Inc Direct conversion fsk receiver
KR100419427B1 (en) * 1996-06-24 2004-05-31 삼성전자주식회사 Method for adjusting frequency of voltage control oscillator in wireless communication system
US6029052A (en) * 1997-07-01 2000-02-22 Telefonaktiebolaget Lm Ericsson Multiple-mode direct conversion receiver
US6420916B1 (en) 1997-08-05 2002-07-16 Rockwell Collins, Inc. Phase locked loop filter utilizing a tuned filter
JP3045131B2 (en) * 1997-12-03 2000-05-29 日本電気株式会社 Radio selective call receiver
KR100272170B1 (en) * 1998-08-17 2000-11-15 윤종용 Wide range vco and pll using the same
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US7065327B1 (en) 1998-09-10 2006-06-20 Intel Corporation Single-chip CMOS direct-conversion transceiver
US6370371B1 (en) * 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) * 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) * 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) * 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7039372B1 (en) * 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6873836B1 (en) * 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US6853690B1 (en) * 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) * 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) * 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7082171B1 (en) * 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US7292835B2 (en) * 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) * 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7068725B2 (en) 2000-07-10 2006-06-27 Garmin At, Inc. Bit detection threshold in a TDMA burst communication system
US6725024B1 (en) 2000-11-07 2004-04-20 Telefonaktiebolaget Lm Ericsson (Publ) Offset local oscillator frequency
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) * 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) * 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
EP1313277A1 (en) 2001-11-16 2003-05-21 Agilent Technologies, Inc. (a Delaware corporation) Method for determining the magnitude of AMI-pulses by calculating the median value
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) * 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
DE10257536B4 (en) * 2002-12-10 2011-07-07 Newlogic Technologies Gmbh Voltage controlled oscillator
US20040157571A1 (en) * 2003-02-07 2004-08-12 Klaas Wortel Enhanced register based FSK demodulator
TWI280690B (en) * 2003-03-18 2007-05-01 Tdk Corp Electronic device for wireless communications and reflector device for wireless communication cards
SG113455A1 (en) * 2003-03-27 2005-08-29 Oki Techno Ct Singapore Pte Differential detector
TWI266484B (en) * 2004-12-07 2006-11-11 Via Tech Inc A fast-switch charge pump and loop filter for high-speed dual-power phase lock loop
US7689189B2 (en) * 2005-04-06 2010-03-30 Silicon Laboratories Inc. Circuit and method for signal reception using a low intermediate frequency reception
DE102005021193A1 (en) * 2005-05-03 2006-11-09 Endress + Hauser Gmbh + Co. Kg Circuit arrangement and method for signal conditioning of a digital signal
GB2453767A (en) * 2007-10-19 2009-04-22 Toumaz Technology Ltd Automatic frequency correction in a frequency shift keying recevier

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7705552A (en) * 1977-05-20 1978-11-22 Philips Nv QUADRATURE TRANSPOSITION STAPLE.
GB2032737A (en) * 1978-10-24 1980-05-08 Standard Telephones Cables Ltd Radio receiver for tone modulated signals
GB2057820B (en) * 1979-09-04 1984-07-04 Standard Telephones Cables Ltd Radio receiver for fsk signals
US4517519A (en) * 1980-11-07 1985-05-14 Kabushiki Kaisha Suwa Seikosha FSK Demodulator employing a switched capacitor filter and period counters
GB2106359B (en) * 1981-09-24 1985-07-03 Standard Telephones Cables Ltd Direct conversion radio receiver for fm signals
US4475219A (en) * 1982-08-18 1984-10-02 General Electric Company Demodulator for frequency-shift-keyed binary data signals
GB2141007B (en) * 1983-06-02 1986-07-23 Standard Telephones Cables Ltd Demodulator logic for frequency shift keyed signals
JPS60100859A (en) * 1983-11-08 1985-06-04 Nec Corp Frequency detector
GB2155262B (en) * 1984-03-01 1988-01-20 Standard Telephones Cables Ltd Radio receiver
NL8401347A (en) * 1984-04-27 1985-11-18 Philips Nv A FSK DATA RECEIVER.
GB2158330A (en) * 1984-04-30 1985-11-06 Philips Electronic Associated An afc system for a direct modulation fm data receiver
GB2172158B (en) * 1985-03-07 1988-12-29 Stc Plc Zero-if radio receiver

Also Published As

Publication number Publication date
DE69030838T2 (en) 1997-11-20
US5091921A (en) 1992-02-25
CA2014916A1 (en) 1990-10-20
EP0394064A2 (en) 1990-10-24
DE69030838D1 (en) 1997-07-10
EP0394064B1 (en) 1997-06-04
CA2014916C (en) 1994-11-08
AU624707B2 (en) 1992-06-18
EP0394064A3 (en) 1992-11-04

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